Evaluation of Serum Cystatin C as a Marker of Early Renal Impairment in Patients with Liver Cirrhosis

Table 7

Bland-Altman plot analysis for the agreement between isotopic GFR and the other GFR estimating formulae.

	Mean ± SD		95% CI
CCr	2.04 ± 29.6	0.565	−5.0–9.1
C-G formula	−44.7 ± 55.8	<0.0001	−58.1–−31.3
MDRD 4	−34.7 ± 61.3	<0.0001	−49.3–−20.1
MDRD 6	−12.9 ± 48.3	0.028	−24.5–−1.4
CKD-EPI-Cr	−16.6 ± 27.7	<0.0001	−23.2–−9.9
CKD-EPI-CysC	32.5 ± 35.3	<0.0001	24.1–40.9
CKD-EPI-Cr-CysC	23 ± 23.6	<0.0001	17.4–28.6

C-G formula, Cockcroft-Gault formula; CKD-EPI, Chronic Kidney Disease Epidemiology Collaboration; Cr, creatinine; CCr, creatinine clearance; CysC, cystatin C; MDRD, modification of diet in renal disease equation with 4 and 6 variables.